Purpose: This study employed a non-equivalent controlled pre-post experimental design to create educational content on basic cardiopulmonary resuscitation(CPR) and defibrillators using augmented reality smart glasses and determine its impact on nursing students' clinical competence, self-efficacy, and satisfaction. Method: The participants were nursing students from “S” University. The experimental and control groups comprised 33 and 29 participants, respectively. The dependent variables are clinical competence, self-efficacy, and satisfaction. The experimental group utilized augmented reality smart glasses, while the control group watched videos on a tablet PC. The collected data were analyzed using t-tests, -tests, and ANCOVA through the SPSS 25 program. Results: Clinical competence was significantly higher in the experimental group (1.86±0.01) than in the control group (1.75±0.01; F=31.76, p<.001). Self-efficacy was significantly higher in the experimental group (9.00±0.11) than in the control group (7.94±0.12; F=39.04, p<.001). Similarly, satisfaction was significantly higher in the experimental group (4.95±0.09) than in the control group (4.69±0.30; t=4.494, p<001). Conclusion: Augmented reality-based CPR and defibrillation training is effective in Improving nursing students’ clinical competence, self-efficacy, and satisfaction.